nice

Very interesting and shows some great tips.

I love the lovely 2500 in the background! I miss that case design!

When Sears went to this red/black case design, the idler pulley went black too. The 1980's silver cased Sears (like mine) was the last to use the silver idler pulley.

I love chamberlain belt drive motors with BB

WTF unplugged and still working, that is a good installation, saving money in electric bill.

@Punchis1983 this particular LiftMaster has a battery backup so if the power goes out, the door will still open. Great for elderly people. My grandma has one and when the power goes out, she doesn't have to lift the door.

My doorbell wallbuton is mounted at 45 inches above floor and it was installed by catslerock houses and they didnt cut the extra peice and they use the wrong wires that is really not good to do

At 4:05 the door opens so smoothly with no jerkining and the motor unit is steady as well. Anyone else notice that the unit was unplugged?

@mrm0645

10 жыл бұрын

testing the battery backup maybe?

@christopherjholland

9 жыл бұрын

That's funny.

The motor itself most likely had a back up battery installed, so the motor can still be used to open or close the door a few times. Even though it's unplugged.

No, it's the original DC belt drive. It took the design of the older screw drive designs, but apparently there were numerous problems, (shocking, since it is a LiftMaster). Chamberain removed that style completely... you don't even see it in Craftsman anymore.

This was the PrecisionGarageDoor Phantom Power Upgrade model demonstration.

i don't get this commercial, at 4:06 note that the electric door opener is not plugged in and it is lifting the garage door. Unless they have invented a electric free door opener this video is a spoof.

@SHINYamAHA21 Either unwind both of the springs another 1/4 turn at a time or turn the close force up a little bit on the opener.

@chicagolandhobby Thank you for the reply. I don't know what you mean exactly but I will try. :)

Just google PrecisionGarageDoor and you will find many interesting things.

Quite amazing considering it worked as it wasnt plugged in at the end ;)

Great tips from a guy that sounds like Rudy Giuliani!

Punchis1983, This is actually a LiftMaster Model 3850 with Built-In battery backup. Rather than simulate a power outage we unplug the operator to confirm the battery backup is working properly. Or David Copperfield is our Installation Technician, you pick. Please call your local Precision Door Service Franchise and we can install one of these for you. Have a great day.

We installed the new springs(150LB Red code), garage door won't go down. little bit move down and right back up. The door can be forcefuly pulled down. It's more than 500LB door. Opening with remote control works fine. Closing is the problem. some advice please? My car has been sitting out...:(

What happened to adjusting the closing force and auto reverse? Where are is the warning label at the control switch?

Are you sure Matt? Look at the idler pulley, it's black too...

Just a quick question. Does that wire channeling lock the wires in securely? You yourself said wires shouldn't be near any moving parts, and in this factor, you have the belt and the trolley.

@linknightmare Testing the backup battery in the motor.

@Chupria battery back up .

In the video, the wiring is runn through a garage door channel. Any idea of what it is and where it can be purchased?

Is that the screw drive on the left door? (looking from the inside) I've yet to learn the screw drive model numbers.

battery backup

@chicagolandhobby Why not read his question? He is talking about stretch springs not torsion. And either way most folks do not have a 500# lb door. Stop with the advice before something bad happens. ie, safety cables ect.

@SHINYamAHA21 If you need more help, lemmie know. :)

tried the flame a diehard

Why not cut me some slack? I did read his question. He did not specify if the springs were extension or torsion, so I assumed torsion. Stop with the judging before thinking a little bit.

lol yes it is...It was funny the way that you said...lol Thanks for the laugh...lol

4:05 Garage opener works even when unpluged...

The J arm on a 8 foot door do you half to trim it

It almost seems like you guys threw up this install to its full worst extent and then install the 1 opener "professionally" Only reason I assume this is the header bracket used to hold up the T-rail is black, while the header bracket that WOULD have went with that Sears/Craftsman is Silver. Nice try, you guys just took down a Lift-Master threw this up and made this shitty video.

battery backup